Print Email Facebook Twitter Highly concentrated H2O2 preparation, stabilization and decomposition over manganese oxide-based catalysts for space propulsion Title Highly concentrated H2O2 preparation, stabilization and decomposition over manganese oxide-based catalysts for space propulsion Author de Roos, Andreas (TU Delft Aerospace Engineering) Contributor Monai, Matteo (mentor) Jyoti, B.V.S. (mentor) Degree granting institution Delft University of TechnologyUniversiteit Utrecht Programme Aerospace Engineering Date 2022-06-27 Abstract High concentration hydrogen peroxide (HP) promises to be an economical and green alternative for hydrazine. However, it has only limited storage life, and addition of stabilizers must be avoided to preserve the high purity required for propellants. This work has investigated the mechanical fastening of normally dissolved stabilizers on the decomposition of HP. Furthermore, there is currently no suitable ignition system for HP-ethanol rocket motors, despite extensive research. This work has investigated the viability of using a supported catalyst to decompose HP; the hence liberated heat can potentially be used to ignite ethanol. Different mechanically rigid ceramic catalyst bodies were prepared based on manganese oxide. Their reactivity was verified by repeated release of 98% HP droplets; the subsequent reaction was monitored with thermocouples and high speed imaging. This showed that γ-alumina offered the highest reactivity and thermomechanical stability. Lastly, tests showed that these catalysts may induce ignition in HP-ethanol engines. Subject Hydrogen PeroxideSpace propulsionCatalystmanganese dioxidealuminazirconia To reference this document use: http://resolver.tudelft.nl/uuid:9cd589e9-d455-421e-bdce-9aae09b5aa7d Embargo date 2023-01-12 Part of collection Student theses Document type master thesis Rights © 2022 Andreas de Roos Files PDF Thesis_AdR_final_4373022.pdf 16.22 MB Close viewer /islandora/object/uuid:9cd589e9-d455-421e-bdce-9aae09b5aa7d/datastream/OBJ/view